I just realized that the D root DNS name server updated its IPV4 earlier this year, luckily the old is continuing to work until June, which is probably the reason why I didn’t noticed the change. So if you’re crazy enough like me to run your own DNS server for your home network (Windows DNS server does not count), instead of using your ISP’s, Google’s or OpenDNS DNS services, then update your hints file with D.ROOT-SERVERS.NET new IPv4 IP address.

D.ROOT-SERVERS.NET. 3600000 A 199.7.91.13